CN202543933U - Piston and drill rod connection device for hydraulic pile cutting machine - Google Patents
Piston and drill rod connection device for hydraulic pile cutting machine Download PDFInfo
- Publication number
- CN202543933U CN202543933U CN201220184543XU CN201220184543U CN202543933U CN 202543933 U CN202543933 U CN 202543933U CN 201220184543X U CN201220184543X U CN 201220184543XU CN 201220184543 U CN201220184543 U CN 201220184543U CN 202543933 U CN202543933 U CN 202543933U
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- drill steel
- oil cylinder
- drill rod
- bearing pin
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Abstract
The utility model discloses a piston and drill rod connection device for a hydraulic pile cutting machine and relates to a pile cutting machine for building engineering machinery. According to the device, due to the mode of flexibly connecting the rear end of a drill rod and the front of the piston on a cylinder, a certain fit clearance is kept between a pin shaft on the drill rod and a pin shaft hole on the piston, so that the axial force between the cylinder and the piston is reduced, the motion stress strength of the drill rod and the piston is effectively reduced, the rigid connection mode of the piston and the drill rod is avoided, and the service life of the piston and the drill rod on a hydraulic cylinder on the pile cutting machine is prolonged. The piston and drill rod connection device is good in pile cutting effect and long in service life; and the maintenance rate is reduced, the drill rod is rapidly and conveniently replaced, and the construction safety and working efficiency are powerfully improved.
Description
Technical field
The utility model relates to a kind of stake machine that cuts of constructional engineering machinery, and particularly a kind of hydraulic pressure cuts a machine piston and drill steel coupling arrangement.
Background technology
Since China's reform and opening-up, national economy is increased fast, has brought the prosperity of builing industry.Builing industry progressively develops to intensive style, energy-saving and emission-reduction, low-carbon (LC) and high-tech direction with " scientific and technical innovation, autonomous innovation ".Development along with modern construction engineering machine science technology; Constructional engineering machinery working environment great majority are relatively more abominable, labour intensity is big; Must " scientific and technical innovation ", change the traditional mechanical performance that falls behind, reduce labor intensity, increase work efficiency, prolong the application life of machine.Piston on the oil cylinder and drill steel are to cut one of stake machine vitals; Particularly present piston and the drill steel that cuts on the stake machine adopts thread connection, and because of labour intensity is big, that does not stop causes piston and drill steel appearance damage on the hydraulic jack to hinder with the hole in motion easily; Cause shorten the application life of piston; Serious is the fracture of drill steel point of attachment, causes stop work and production, influences construction speed.Main cause is that piston and drill steel adopt the rigid connection mode, causes drill steel when receiving external force, and radial load can directly pass to the piston on the oil cylinder, the application life of directly reducing piston and drill steel.In order to address this problem; R&D institution and science and technology in enterprise personnel are constantly studying, are exploring; Utilize modern science and technology; Piston on the existing section stake Oil cylinder and drill steel connecting mode are improved and innovate, and some are progressive though obtained technically, in practice, still exist the technical barrier that does not overcome as yet.
Summary of the invention
The purpose of the utility model is to overcome above deficiency, provides a kind of hydraulic pressure to cut a machine piston and drill steel coupling arrangement.Adopt drill steel rearward end and the anterior flexibility of piston on the oil cylinder mode that links, make the certain fit clearance of maintenance between bearing pin and the pin shaft hole on the piston on the drill steel, the axial force of minimizing oil cylinder and piston, the motion that reduces drill steel and piston effectively receives force intensity.Solved the rigid connection mode of piston and drill steel, the piston on the hydraulic jack on the raising section stake machine and the application life of drill steel.It is effective to cut stake, and long service life has reduced maintenance rate, and it is efficient and convenient to change drill steel, the safety and the operating efficiency of strong raising construction.
The utility model solves the technical scheme that its technical problem adopted: contain drill steel, bearing pin, piston, oil cylinder, drill steel device, silently bolt, oil cylinder flange, oil cylinder be one oval tubular, on oil cylinder, be provided with two screws; One is fuel feed hole, another is spill port, is provided with the oil cylinder flange on the top of oil cylinder, in oil cylinder, is provided with piston; Position, top at piston is provided with bolt hole up and down, and the oil cylinder flange fixes with rear end on the drill steel device and connects, and is provided with a drill steel at the center of drill steel device; Drill steel is a kind of special tool drill bit, and the tapered shape in top ends position is provided with the tough angle of polygon cutting before the drill steel at the taper position; Stretch out a spindle nose at the position, rear end of drill steel; On spindle nose, be provided with a hole of wearing bearing pin, the spindle nose that drill steel stretches out just in time with piston on the hole link with bearing pin, the spindle nose on the drill steel be provided with the gap between piston cooperates; Be provided with the gap between piston and the bearing pin equally; Screw in bolt silently in two bolts hole up and down at piston tip position, bearing pin is fixed, formed a kind of hydraulic pressure and cut a machine piston and drill steel coupling arrangement.
The know-why that the utility model adopts is: this device adopts the flexibility of the piston front portion on drill steel rearward end and the oil cylinder mode that links; Make and keep certain fit clearance between bearing pin and the pin shaft hole on the piston on the drill steel; Reduce the radial load and the torque of oil cylinder and piston, the motion that reduces drill steel and piston effectively receives force intensity.In design process, with spindle nose of the position, rear end of drill steel design, spindle nose cooperates with piston on the oil cylinder and makes things convenient for; Be prone to change part because of drill steel is one, often will change, use threaded connection mode; Use special tool; As drill steel and piston region fracture take place, and unload and tear more trouble, time-consuming open, directly influence the engineering construction progress.The rear end spindle nose and the piston of drill steel are linked the flexible way of employing with bearing pin.Spindle nose on the drill steel with keep certain clearance between piston cooperates.When cutting stake, the piston on the oil cylinder promotes to move back and forth about the drill steel bringing onto load, in case run into stronger concrete stake; It is big to produce the impact force load, but the power pressure-equalizing and discharging just plays cushioning effect; Reduced receiving force intensity, guaranteed that piston and drill steel are difficult for being damaged or rupturing.Solved the generation of fault, prolonged the application life of piston and drill steel, increased work efficiency.
The utility model beneficial effect is: this device has adopted the anterior flexibility of the piston on drill steel rearward end and the oil cylinder mode that links; Make and keep certain fit clearance between bearing pin and the pin shaft hole on the piston on the drill steel; Reduce the axial force of oil cylinder and piston; The motion that reduces drill steel and piston effectively receives force intensity, has solved the rigid connection mode of piston and drill steel, the piston on the hydraulic jack on the raising section stake machine and the application life of drill steel.It is effective to cut stake, and long service life has reduced maintenance rate, and it is efficient and convenient to change drill steel, the safety and the operating efficiency of strong raising construction.
Description of drawings
Be to combine accompanying drawing and embodiment that the utility model is further described below:
Fig. 1 is the structure sectional view that a kind of hydraulic pressure cuts a machine piston and drill steel coupling arrangement.
Fig. 2 is the schematic three dimensional views that a kind of hydraulic pressure cuts a machine piston and drill steel coupling arrangement.
In the drawings: 1. drill steel, 2. bearing pin, 3. piston, 4. oil cylinder, 5. drill steel device, 6. silently bolt, 7. oil cylinder flange.
The specific embodiment
In Fig. 1, Fig. 2: oil cylinder 4 be one oval tubular, on oil cylinder 4, be provided with two screws, one is fuel feed hole, another is spill port; Be provided with oil cylinder flange 7 on the top of oil cylinder 4, in oil cylinder 4, be provided with piston 3, be provided with bolt hole up and down at the position, top of piston 3; Oil cylinder flange 7 fixes with rear end on the drill steel device 5 and connects, and is provided with a drill steel 1 at the center of drill steel device 5, and drill steel 1 is a kind of special tool drill bit; The tapered shape in top ends position is provided with the tough angle of changeable cutting before the drill steel 1 at the taper position, stretches out a spindle nose at the position, rear end of drill steel 1; On spindle nose, be provided with a hole of wearing bearing pin 2, the spindle nose that drill steel 1 stretches out just in time with piston 3 on the hole link with bearing pin 2, the spindle nose on the drill steel 1 be provided with the gap between piston 3 cooperates; Be provided with the gap equally between piston 3 and the bearing pin 2; Screw in 6 choosings of bolt silently in two bolts hole up and down at positions, piston 3 top, bearing pin 2 is fixing, form a kind of hydraulic pressure and cut a machine piston and drill steel coupling arrangement.
A kind of hydraulic pressure cuts a machine piston and drill steel coupling arrangement; Adopt the flexibilities of piston 3 front portions on drill steel 1 rearward end and the oil cylinder 4 mode that links; Make and keep certain fit clearance between bearing pin 2 and the pin shaft hole on the piston 3 on the drill steel 1; Reduce the radial load and the torque of oil cylinder 4 and piston 3, the motion that reduces drill steel 1 and piston 3 effectively receives force intensity.In design process, with spindle nose of the position, rear end of drill steel 1 design, spindle nose cooperates with piston 3 on the oil cylinder 4 and makes things convenient for; Be prone to change part because of drill steel 1 is one, often will change, use threaded connection mode; Use special tool; As drill steel 1 and the fracture of piston 3 positions take place, and unload and tear more trouble, time-consuming open, directly influence the engineering construction progress.The rear end spindle nose and the piston 3 usefulness bearing pins 2 of drill steel 1 are linked the flexible way of employing.Spindle nose on the drill steel 1 with keep certain clearance between piston 3 cooperates.When cutting stake, the piston 3 on the oil cylinder 4 promotes to move back and forth about drill steel 1 bringing onto load, in case run into stronger concrete stake; It is big to produce the impact force load, but the power pressure-equalizing and discharging just plays cushioning effect; Reduced receiving force intensity, guaranteed that piston 3 and drill steel 1 are difficult for being damaged or rupturing.Solved the generation of fault, prolonged the application life of piston 3 and drill steel 1, reduced maintenance rate, increased work efficiency.
Claims (1)
1. a hydraulic pressure cuts a machine piston and drill steel coupling arrangement, contains drill steel, bearing pin, piston, oil cylinder, drill steel device, silently bolt, oil cylinder flange, it is characterized in that: oil cylinder be one oval tubular; On oil cylinder, be provided with two screws, one is fuel feed hole, another is spill port, is provided with flange on the top of oil cylinder; In oil cylinder, be provided with piston, be provided with bolt hole up and down at the position, top of piston, the flange on the oil cylinder fixes with top on the drill steel device and connects; Be provided with a drill steel at the center of drill steel device, drill steel is a kind of special tool drill bit, the tapered shape in top ends position before the drill steel; Be provided with the tough angle of polygon cutting at the taper position, stretch out a spindle nose, on spindle nose, be provided with a hole of wearing bearing pin at the position, rear end of drill steel; The spindle nose that drill steel stretches out just in time with piston on the hole link with bearing pin; Spindle nose on the drill steel be provided with the gap between piston cooperates, be provided with the gap between piston and the bearing pin equally, screw in bolt silently in two bolts hole up and down at piston tip position; Bearing pin is fixed, formed a kind of hydraulic pressure and cut a machine piston and drill steel coupling arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220184543XU CN202543933U (en) | 2012-04-27 | 2012-04-27 | Piston and drill rod connection device for hydraulic pile cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220184543XU CN202543933U (en) | 2012-04-27 | 2012-04-27 | Piston and drill rod connection device for hydraulic pile cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543933U true CN202543933U (en) | 2012-11-21 |
Family
ID=47164587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220184543XU Expired - Fee Related CN202543933U (en) | 2012-04-27 | 2012-04-27 | Piston and drill rod connection device for hydraulic pile cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198971U1 (en) * | 2019-12-04 | 2020-08-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Device for cutting reinforced concrete piles |
-
2012
- 2012-04-27 CN CN201220184543XU patent/CN202543933U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198971U1 (en) * | 2019-12-04 | 2020-08-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Device for cutting reinforced concrete piles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU TYSIM MACHINERY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU KINHAN HEAVY INDUSTRY CO., LTD. Effective date: 20140122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 224300 YANCHENG, JIANGSU PROVINCE TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140122 Address after: 214000, room 3, building 311, No. 0916, Yan Xin Road, Huishan Economic Development Zone, Wuxi, Jiangsu Patentee after: JIANGSU TAIXIN MACHINERY TECHNOLOGY CO., LTD. Address before: 224300, No. 888, Renmin West Road, Yancheng City Sheyang Economic Development Zone, Jiangsu Patentee before: Jiangsu Kinhan Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20170427 |